<div class="mains">
    <div class="top">
        <a href="">Eye4商城</a>
        <div class="topbo">
            <a href=""><div class="img"><img src="../img/top_1.png"/></div>购物车（1）</a>
            <div class="right_distance"><a href="">消息通知</a></div>
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<div class="site-header">
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        <div class="header-logo">
            <img src="../img/top_2.png"/>
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                <li class="nav-item">
                    <a class="link"><span class="text">全部商品分类</span><span class="arrow"></span></a>
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                    <a class="link"><span class="text">家用网络摄像机</span><span class="arrow"></span></a>
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                    <a class="link"><span class="text">专用网络摄像机</span></a>
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                    <a class="link"><span class="text">报警摄像机主机</span></a>
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                    <a class="link"><span class="text">婴儿看护器</span></a>
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        <div class="header-search">
            <form  class="search-form">
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